Printing press



Nov. 4 1924'- C. A` H. BULLOCK PRINTING PRESS Filed Sept. 5, 1922 3 Sheets-Sheet 1 uw wh. w

Nm. 4 i924. LSMAZ? C. A. H. BULLOCK PRINTING PRESS Filed Sept. 5, 1922 3 Sheets-Sheet 2 Nov. 4 9 192.4. 514,427

c. A. H. BULLocK PRINTING PRESS Filed Sept. 5, 1922 3 Sheets-Sheet 3 `stati'onary type 'means being provided for Patented Nov. 4l, i924.

itung; iles.

guantes estimen nana-Y Bumsen, or nounou, ENGLAND.

PRJNTING- PRESS.

Application led September 5, 1922. Serial No. 586,250.

' V`vThis"invention relates to printing presses and has reference to printing presses adapted" to be' run` continuously vby` arotary motion.

'The invention consists broadlyy of a machiney having its! type or plate when used as; an offset machine stationary while inking and? impression lrollersV rotate around the applying and* removing the sheets to be printed-upon.

In? order that the-'invention may be clearly understood and readily'carried into practice thesame will now be fullyv described with reference to the accompanying drawings which illustrate a printing press constructed' in accordance with and embodying my invention, and in which F ig. 1 is an elevation of the press,

Fig. 2a plan view,

Fig. 3 is a part end elevation looking in one direction, with the cover plate'removed. Fig. la part end elevation looking in the opposite direction, with the cover plate or .frame removed. v'Figs 5, v6 vand 7 are details of the paper stripper mechanism hereinafter more fully described.

Figs. 8- and 9` are a front and side eleva tion of a detail hereafter to be described.

Referring to the drawings the numeral 1 designates `'the frame of themachine or press, Q' and-2afshafts carryingchain wheels 3 conne'cted' by endless'chains l motion being impartedfthereto 'by'a handle 5. vh/[ounteduponthey chai-nsf are shafts 6 carrying inking Y'ririllers 7, and shaft 8 carrying pressure roller 9.`

*Pillars or supports 10 extend ossthe- Ap'resfs and'support a base plate 11 :to which; Qa-resecuredh'brackets 12 adapted toj reston'the' supports 10`. 'A toothed or erably oie-*ball torv roller bearings, on the jliasepla't'e l11'and isactuated by a paivl and iatchet movement.

"o'r disellfacircular openingfbeing made in thefbase'plate Sothat' the ink may be distributedevenly'l'lon rollers'? when the same move under the inl; distributing plate 1l. The type is set up in a chase y15` said chase resting upon the supports 10fbetween guide strips 16 thus retaining the cliasein position when printing. A. sump or duct 17 is suitably supported on lower guide raijls 1S adapted to supply ink to a feed roller 19. The three ink rollers 7 7`and 19 are journa-lled in plates or brackets 20 mounted on or carried by the shafts '6, and it will be observed that slot 211 is provided to allow for the difference in pitch'between the centre of the two rollers 7 due to the curvature of the chain when the rollers are passing around the end portions. A similar slot 231 is provided for the shaft of the roller 1S) so thatv the said roller may fall into engagement' with the sump rollery 22v which 4supplies inl; from the sump and distributesfit over the ro-llers 7.

The operation of the machine is as fol-V lows Assuming the parts are in the position shown in Figs. 1 and 2 the spring paperclip 23 has just been opened up for the 'reception of the paper. This is effected by a lever' 24 suitably mounted in guides 25 (see Fig.1)" the said lever receiving a reciprocatory motion from a cam or eccentric 26 rigidly mounted upon a toothedI wheel 27 gearing with a pinion 28 on the shaft 2a on which handle 5 is secured for effecting vrotarymotion of the chain wheels 3' andimp'arting motion to the chains el.' As the let/er'l 24 moves forward its end 30 engagesy a'lip 31 on the upper member ofthe spring clip 23. Two springs are mounted on the shaftY or spindley ofthe paper clip, a Vmain spring'32 fforensuring return of the ywhole clipto its i normal`r position after'actuat'ion and an auX- iliary lighter spring 33. 1t will be understood that'on acti'iation` of the lip 31 by "engagemen't therewith of the end of lever 24,

the" 'spring' 4.23 is raised slightly fandr at the saine time opened out as shown inFig- 'ure l'for the reception of the 4paper which` is placed in position withitsl edge up against the lip 23a. its `the pressure roller 9" moves forward'it engages thelo'wer member'of the clip vcloses the same and therebyeft'ects a grip upon the paper.I fTlieipressure" roller continuing turns or 'rotatesthe clip carrying the sheet of paper broughtfforward from the feeding platform so'that itlaysfthe paper with the surface to be printed flat upon the type etc, from which it is to receive the impression the type having been previously inked by the passing over ot the ink rollers. lv/leant-ime the cam or projection 34 on the clip engages the end of a spring controlled latch or lever 35 and retains one member ot the clip in the position shown in Fig. 3, the other member ot the clip flying open as shown by the action of the auxiliary spring 33. A stripper mechanism 38 pivotally mounted on a shaft- 40 secured to the chains 4 now comes into operation to piclr up the paper and present it to friction guide pulleys 37 for subsequent delivery into a receiving receptacle or box 36. The action and operation of the stripper will be bestI described by reference to Figs. 5, 6 and 7. When moving over the paper clip 23 the stripper passes through an opening Qb cut in one member of said clip and the spring controlled lips 39 ofy the stripper seize the edge of the paper. A tilting lever 41 mounted upon the shaft 40 engages a fixed projection 42 on the guide rail 43 thus roclring the stripper to the position shown in Fig. 6. During this upward movement of the stripper 3S a linlrL 44 mounted at 45 to a connecting bar 46, roclrs the spring lips' 39 about the centre 47 thus carrying the paper round to the position shown in dotted broken line (Fig. 6). The. paper is thus stripped from the type and carried along to the friction pulleys 37 which relieve it from the stripper and deposit it into the tray or box 36. Motion is imparted to the friction rollers 37 by means of a wheel 48 meshing with the chain 4, a toothed pinion 49 secured on the same shaft as the wheel 48 meshes with a toothed wheel 50 and transmits motion to a pinion 51 on a shatt 52 carrying the friction rollers 37. The shaft 52 revolves in bearings 53 fixed to the trame of the machine or mounted as at 54 to the frame of the machine. The lower shaft 56 and friction pulleys 37 are journalled in brackets 57 secured to extensions 58 on the machine frame. From the position shown in Figs. 1 and 2 the inking rollers 7 pass around with the chain to the underside, whilst the feed roller 19 in passing the sump roller 22 pic rs up a supply of ink and distributes it upon the ink rollersl 7, a more even distribution being maintained by Contact ot the said rollers 7 with the distributing plate 14. Bowls or rollers 59 on the inlring roller shaft-s run on the lower guide rails 18 so as to maintain Contact of the rollers 7 with the plate 14. Similar bowls or rollers 61 are provided on the pressure roller shatt- 8 and as the pressure roller 9 travels over the chase containing the type pressure is exerted upon the paper to eitect an impression since the bowls or rollers 61 run under upper guide rails 62. This pressure vcan be regulated or adjusted by means et screws 63 and springs 64 to exert more or less pressure on the bowls 61 and pressure roller as desired. As the pressure roller moves over the type it comes into contact with a bell cranlr lever 65 pivotally mounted to the lever or latch 35, release of the paper clip 23 being thus effected bot-h members which now spring baclr to their normal position this being efected by the main spring 32 which is oi" greater strength than the spring 33.

rlhe aressure roller completes its travel over the paper and passes round the end and underneath 'the trame 66, the bowls or rollers (il. are so disposed that they do not engage the lower guide rails 18 and the roller there- Ytore sags on the chain and thereby clears the hiring plate 14 when passing thereunder. the same time as the pressure roller is passing underneath, that is when the inlring rollers are passing over the type, a ratchet pawl 6.7 is actuated to rotate the ratchet disc or slate 13 and consequently the ink distribi plate 14 through a portion of a revolution thus ensuring that even distribution ot the inl; upon the inlring rollers is edected.

rThis operation will be clearly understood upon reference to Fig. 4. A connecting bar G8 is mounted upon the toothed wheel 27 said lever being connected at its other end 69 to a sliding shoe or block 70 with guide plate 70h sliding and reciprocating in the slot T1 provided in the frame (i6. Pivotally mounted upon an extension 70a of the block TO is the spring actuated pawl GT. lt will thus be seen that a reciprocating mot-ion is imparted to the bloc 70 and paw] 67 thereby eiecting actuation oit the ratchet disc or plate 18.

To sunnnariae briefly the operation of the press the handle 5 is rotated continuously and the inlring rollers 7 travel over the type and inlr the same. Then they reach the 'forward end of the stroke the pressure roller 9 commences to turn over the clip holding the and subsequently rolls over the paper Y the impression to be taken from ed type below.

rlhe stripper 38 then takes hold o't the edge of the paper strips it from the type and presents it to the friction discs 37 for subsepaper quent delivery to the tray or box 36. The.

its Jtorward pressure stroke.

rl`he spring clip comprises two jaws mounted upon a common hinge pin and held open by a spring. A further spring operates to maintain the clip in a lowered position clear of the path of both the pressure and inlring rollers.

`When the inking roller has passed, the rod 24 is moved by the cam 26 into contact with a projection on the upper jaw. As a consequence the clip is turned to the position shown in Figs. l and l ready for the paper. The clip is now in the path of the pressure roller which contacts with the lower jaw serving to close the same against the upper jaw and turn the whole clip over. The continued movement of the pressure roller serves to lay the paper on the surface of the platen. n

The stripper 38 is arranged to assume its normal position (see Fig. 5) before the commencement of its forward stroke by reason of the tilting lever 41 running off its guide rail at 7 2.

One means for automatically stopping the rotary movement when the paper clip is in a position to receive a sheet of paper is illustrated in Figs. 8 and 9. These means necessitate the crank handle 5 being mounted upon a separate spindle 73, the drive to the main spindle 74 being through interposed gearing 75 and 7 6. The stopping means comprise a stop 77 carried by the end of a spring controlled trigger 78 slidably mounted upon the crank handle 5 which stop is adapted to periodically co-act with a turther stop 79 carried by the free end of a pivoted arm 80. This arm is normally held in a position where its stop is clear of the trigger' stop 7 7 by resting upon the peripheral flange of a Wheel 8l. rlhis flange is provided with a flat 82 which permits the arm 80 to drop to a position where its stop resides in the path of the trigger stop` 77. In this position the paper clip is ready to receive a sheet of paper. To permit the handle 5 to be again rotated when the paper is in position the trigger 7 8 is depressed so as to lower the stop 77 out of the path of the other stop 79.

What l claim and desire to secure by Letters Patent is 1. its travelling press comprising a stationary platen, an endless carrier, inking and impression rollers attached to said endless carrier means for moving said endless carrier so as to cause said inlring and impression rollers to travel over and around said stationary platen means for inking said inlring rollers at a point in their travel means for distributing the ink so applied evenly over said inlring rollers, pivoted clips adapted to receivea sheet of paper and by the action of the impression roller to grip the same and be turned so as to lay the sheet upon the surfaceof the platen further clips carried by and moving with the endless carrier adapted to engage the rear edge of the printed sheet on the platen, means for automatically lifting said clips about a pivotal point when the same are engaging the paper so as to pull the rear edge or the sheet upwards and forwards to peel the sheet from the platen and means for ejecting the sheet from themachine when peeled comprising pairs of friction guide pulleys between which the normally rear edge of the peeled sheet is presented by the said clips.

2. ril travelling press comprising inking rollers for inling the type, pressure roller for ell'ectingthe necessary impression upon the paper, said rollers being mounted upon chains carried by wheels to which a rotary motion is imparted, whilst the chase containing the type rests upon a flat stationary base, a sump or duct for supplying ink to the inlring rollers, and means for effecting even distribution of the ink upon said rollers prior vto the inlring of the type, a spring controlled paper clip automatically opened and closed at the desired moment for the insertion of the paper and effecting the necessary grip so that the paper may be automatically e. from the feeding platform and laid upon the type by means of the clip actuated by the pressure roller, and for automatically permitting the spring clip to open whereby a stripper device is brought into operation for the purpose off stripping the printed sheet from the type and presenting it to distributing rollers for subsequent removal from the press.

il travelling press comprising a stationary platen, an endless carrier, inlring and impression rollers attached to said endless f-arrier means lor moving said endless carrier so as to cause said inking and impression rollers to travel over and around said stationary platen means for inking said inliing rollers at a point in their travel means for distributing the ink so applied evenly over saitL inlring rollers7 means for automatically applying a sheet of paper to the surface of the stationary platen and means for automatically stripping the sheet of paper therefrom when printed, and means for autoi'natically stopping the movement ot the endless carrier when the machine is in a position to receive a sheet of paper.

l., A travelling press as in claim 8 including a pair of stops one of which is carried by a spring controlled trigger mounted upon the operating crank handle of the machine whilst the other is carried by a pivoted arm which is normally supported clear of the other stop and means for lowering said pivoted arm to cause the stops to co-act and stop the machine when a paper clip provided is in a position to receive a sheet of paper substantially as specified.

n Witness whereof l affix my signature.

CHARLES ASHTON HENRY BULLGCK. 

